Furrow-opener.



W. PEBKINS. PURROW OPENER.

APPLICATION FILED SEPT. 9, 1910.

Patented Mar. 28 1911.

UNTTFFD TATE PATENT @FFTQE.

WILLIAM PERKINS, OF COLUMBIA, OKLAHOMA, ASSIGNOB F ONE-HALF TO ALFRED C.HEDRIGK, OF COLUMBIA, OKLAHOMA.

FURBOl/V-OPENER.

Specification of Letters ratent.

Patented Mar. 28, 1%11.

T 0 all whom it may concern:

Be it known that I, NDLLIAM PERKINS, a citizen of the United States,residing at Golumbia, in the county of Kingfisher, State of Oklahoma,have invented certain new and useful Improvements in Furrow-Openers; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to plows for working grub land and has for itsobject to provide a tilting share that will permit of the removal of theplow after becoming embedded in a stump, rock, or other foreignsubstance in the soil.

The invention resides in the novel form of share and its connection tothe plow beam.

In the accompanying drawings forming part of this specification :-Figurel is a side elevation of the plow showing the share in operativeposition. Fig. 2 is a side elevation of the plow showing the share intilted position to permit of the disengagement of the plow from a stumpor rock. Fig. 3 is a cross sectional view taken on the line 33, Fig. 1.Fig. 4; is an end elevation of the plow. Fig. 5 is a fragmental view inelevation showing the share reversed.

The reference character designates a plow beam having at one end theusual attaching iron 11 and at its opposite end a pair of handles 12,the plow beam being curved downwardly adjacent the handles. Formed inthe curved portion of the plow beam is a transverse circular opening 13which receives the pivot bolt of the plow share.

The plow share la is preferably formed from a single straight bar ofmetal having its leading longitudinal edge sharpened to form a cuttingedge 15 and its lower edge sharpened to form a cutting edge 16. The plowshare is preferably the same in thickness as the beam and is provided onits rear upper corner with a rounded edge 17 which conforms snugly tothe contour of the under side of the plow beam.

Arranged upon the opposite side faces of the plow share is a pair ofclamping plates 18, these plates being sufl'icient in width to overlap aportion of the share and to extend rearwardly beyond the rearmost edgeof the beam. These plates are preferably bolted to the sides of the plowshare as shown at 19. Each plate is provided with an inclined slot 20,these slots registering with the bolt opening 13 of the. plow beam.Passed through the inclined slots in the clamping plates and circularopening in the beam is a pivot bolt 21, this bolt being slidingly fittedin the slots so that the uppermost end of the plow share. may tiltforwardly as shown in Fig. 2. It is now clear that when the leadingpoint of the plow share becomes embedded in a rock, stump or similarforeign substance, this free pivotal movement of the plow share permitsof the point being much more easily disengaged than were the share fixedupon the plow beam as in ordinary plows.

For locking the share in operative position, a locking bolt 22 isprovided, this looking bolt being engaged through a pair of alinedcircular openings 23 formed in the clamping plates considerably abovethe slots therein. When the plow share is in operative position, thisbolt engages the rearmost face of the beam and positively prevents anytilting movement of the share. lhe handles it will be noted are boltedto the outer faces of the plates as shown at 23, and the handleconstitutes means for rocking the plow share in its pivot whereby toquickly disengage the share from a stump or the like.

As shown in Fig. 5 the share is reversible that is the bolts 19 may beremoved and the ends of the share reversed, the bolts then being againinserted to secure the share in position.

"What is claimed is 1. In a plow, a beam having a downwardly curved rearend, a share having one edge fitting in and conforming to the contour ofsaid curved end, a pair of clamping plates fixed to the share andslidingly fitting said end, means for securing said clamping plates andend together and permitting of a free pivotal movement of said share,and a means for locking said share against movement.

2. In a plow, a beam having a clownwardly curved rear end, a plow sharemounted in advance of said end, a pair of clamping plates carried bysaid share and slidingly fitting said end, said clamping plates havingalined slots registering with said beam, a plvot bolt passed throughsald slots and beam and. permlttlng 01' a plvo'tal movement In testimonywhereof, I affix my signature, 1n presence of two wltnesses.

of said share, and a locking bolt passed VILLIAM PERKINS through saidplates above said pivot bolt YVitnesses:

and engaging said beam whereby to look the J. L. HINTS,

share against movement. V. F. MUNoI-I.

Copies of this patent may be obtained for five cents each, by addressingWashington, D. C.

the Commissioner of Patents,

